During installation of MicroStation an error occurs:
"Error 1402. Could not open key:UNKNOWN\Components\xxxxx..xxx\xxxx.xxx.Verify that you have sufficient access to that key, or contact your support personnel"
The error is not a MicroStation error. The error is caused by insufficient or incorrect permissions to that specific registry key or the parent container of the registry key. You'll need to set the permissions to full control on that key in order to install.
****READ FIRST. WARNING: USING THE REGISTRY EDITOR INCORRECTLY CAN CAUSE SERIOUS PROBLEMS AND MAY REQUIRE YOU TO REINSTALL WINDOWS. USE THE REGISTRY EDITOR AT YOUR OWN RISK. http://support.microsoft.com/kb/136393****
More instructions on how to set permissions are here: http://support.microsoft.com/kb/310426/en-us